Controller for soldering iron



FIG. 1 is a first perspective view of a controller for soldering iron;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 3, in which the internal mechanism is omitted.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM The ornamental design for a controller for soldering iron, as shown and described. 